/* =====================================================================
   UniMate Component — Form Inputs v1.0
   text, select, textarea, toggle, checkbox — unified style
   ===================================================================== */

/* ── Base Text Input ─────────────────────────────────────────────────── */
.um-input {
  display: block;
  width: 100%;
  height: 42px;
  padding: var(--um-space-2-5) var(--um-space-3-5);
  border: 1px solid var(--um-border);
  border-radius: var(--um-radius-lg);
  background: var(--um-surface);
  font-family: var(--um-font-body);
  font-size: var(--um-text-base);
  font-weight: var(--um-weight-regular);
  line-height: var(--um-leading-normal);
  color: var(--um-text);
  outline: none;
  transition:
    border-color var(--um-duration-normal) var(--um-ease-default),
    box-shadow var(--um-duration-normal) var(--um-ease-default),
    background var(--um-duration-normal) var(--um-ease-default);
  box-sizing: border-box;
}

.um-input::placeholder {
  color: var(--um-text-muted);
  font-weight: var(--um-weight-regular);
}

.um-input:hover {
  border-color: var(--um-border-strong);
}

.um-input:focus {
  border-color: var(--um-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.um-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--um-surface-sunken);
}

/* ── Size Variants ───────────────────────────────────────────────────── */
.um-input--sm {
  height: 34px;
  padding: var(--um-space-1-5) var(--um-space-3);
  font-size: var(--um-text-sm);
  border-radius: var(--um-radius-md);
}

.um-input--lg {
  height: 48px;
  padding: var(--um-space-3) var(--um-space-4);
  font-size: var(--um-text-md);
  border-radius: var(--um-radius-xl);
}

/* ── Error State ─────────────────────────────────────────────────────── */
.um-input--error {
  border-color: var(--um-danger);
}

.um-input--error:focus {
  border-color: var(--um-danger);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

/* ── Success State ───────────────────────────────────────────────────── */
.um-input--success {
  border-color: var(--um-success);
}

.um-input--success:focus {
  border-color: var(--um-success);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* ── Textarea ────────────────────────────────────────────────────────── */
textarea.um-input {
  height: auto;
  min-height: 80px;
  resize: vertical;
  line-height: var(--um-leading-relaxed);
}

/* ── Select ──────────────────────────────────────────────────────────── */
select.um-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--um-space-3) center;
  padding-right: var(--um-space-8);
  cursor: pointer;
}

/* ── Input Group ─────────────────────────────────────────────────────── */
.um-input-group {
  position: relative;
  display: flex;
  align-items: stretch;
}

.um-input-group .um-input {
  flex: 1;
  min-width: 0;
}

.um-input-group__prefix,
.um-input-group__suffix {
  display: flex;
  align-items: center;
  padding: 0 var(--um-space-3);
  background: var(--um-surface-sunken);
  border: 1px solid var(--um-border);
  color: var(--um-text-secondary);
  font-size: var(--um-text-sm);
  font-weight: var(--um-weight-medium);
  white-space: nowrap;
}

.um-input-group__prefix {
  border-right: none;
  border-radius: var(--um-radius-lg) 0 0 var(--um-radius-lg);
}

.um-input-group__prefix + .um-input {
  border-radius: 0 var(--um-radius-lg) var(--um-radius-lg) 0;
}

.um-input-group .um-input:not(:last-child) {
  border-radius: var(--um-radius-lg) 0 0 var(--um-radius-lg);
}

.um-input-group__suffix {
  border-left: none;
  border-radius: 0 var(--um-radius-lg) var(--um-radius-lg) 0;
}

/* ── Icon inside input ───────────────────────────────────────────────── */
.um-input-icon {
  position: relative;
}

.um-input-icon .um-input {
  padding-left: var(--um-space-10);
}

.um-input-icon__icon {
  position: absolute;
  left: var(--um-space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--um-text-muted);
  font-size: var(--um-text-base);
  pointer-events: none;
}

/* ── Label ────────────────────────────────────────────────────────────── */
.um-label {
  display: block;
  font-size: var(--um-text-sm);
  font-weight: var(--um-weight-semibold);
  color: var(--um-text);
  margin-bottom: var(--um-space-1-5);
  line-height: var(--um-leading-snug);
}

.um-label--required::after {
  content: ' *';
  color: var(--um-danger);
}

/* ── Helper Text ─────────────────────────────────────────────────────── */
.um-helper {
  font-size: var(--um-text-xs);
  color: var(--um-text-muted);
  margin-top: var(--um-space-1);
  line-height: var(--um-leading-normal);
}

.um-helper--error {
  color: var(--um-danger);
}

/* ── Toggle Switch ───────────────────────────────────────────────────── */
.um-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  gap: var(--um-space-2);
}

.um-toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.um-toggle__track {
  position: relative;
  width: 44px;
  height: 24px;
  border-radius: var(--um-radius-full);
  background: var(--um-border-strong);
  transition: background var(--um-duration-normal) var(--um-ease-default);
  flex-shrink: 0;
}

.um-toggle__track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  transition: transform var(--um-duration-normal) var(--um-ease-spring);
}

.um-toggle__input:checked + .um-toggle__track {
  background: var(--um-primary);
}

.um-toggle__input:checked + .um-toggle__track::after {
  transform: translateX(20px);
}

.um-toggle__input:focus-visible + .um-toggle__track {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.um-toggle__label {
  font-size: var(--um-text-base);
  color: var(--um-text);
  font-weight: var(--um-weight-medium);
  user-select: none;
}

/* ── Checkbox ────────────────────────────────────────────────────────── */
.um-checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--um-space-2);
  cursor: pointer;
}

.um-checkbox__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.um-checkbox__box {
  width: 20px;
  height: 20px;
  border: 2px solid var(--um-border-strong);
  border-radius: var(--um-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--um-surface);
  transition:
    background var(--um-duration-fast) var(--um-ease-default),
    border-color var(--um-duration-fast) var(--um-ease-default);
  flex-shrink: 0;
}

.um-checkbox__box svg {
  width: 12px;
  height: 12px;
  opacity: 0;
  transform: scale(0.5);
  transition: all var(--um-duration-fast) var(--um-ease-spring);
  color: #ffffff;
}

.um-checkbox__input:checked + .um-checkbox__box {
  background: var(--um-primary);
  border-color: var(--um-primary);
}

.um-checkbox__input:checked + .um-checkbox__box svg {
  opacity: 1;
  transform: scale(1);
}

.um-checkbox__input:focus-visible + .um-checkbox__box {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.um-checkbox__label {
  font-size: var(--um-text-base);
  color: var(--um-text);
  user-select: none;
}

/* ── Dark Theme Overrides ────────────────────────────────────────────── */
.theme-dark .um-input {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--um-border);
}

.theme-dark .um-input:hover {
  border-color: var(--um-border-strong);
}

.theme-dark .um-input:focus {
  border-color: var(--um-primary);
  box-shadow: 0 0 0 3px rgba(116, 143, 252, 0.15);
}

.theme-dark .um-input-group__prefix,
.theme-dark .um-input-group__suffix {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--um-border);
}

.theme-dark .um-toggle__track {
  background: rgba(255, 255, 255, 0.15);
}

.theme-dark .um-toggle__track::after {
  background: var(--um-neutral-200);
}

.theme-dark .um-checkbox__box {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--um-border-strong);
}

.theme-dark select.um-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
}